- vsnet-alert - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-alert 27625] KS UMa precursor to superoutburst?
by Taichi Kato 12 Apr '23

12 Apr '23

KS UMa precursor to superoutburst? YYYYMMDD(UT) mag observer 20230406.966 <145 (Gary Poyner) 20230407.5623 <144c (Yutaka Maeda) 20230407.939 <145 (Gary Poyner) 20230408.5727 126cG (Yutaka Maeda) 20230408.5727 126cG (Yutaka Maeda) 20230409.5893 132cG (Yutaka Maeda) 20230410.0393 13.84cG (Masao Funada) 20230410.5606 146cG (Yutaka Maeda) 20230410.5606 146cG (Yutaka Maeda) 20230410.6184 150C (Masayuki Moriyama) 20230411.021 154 (Gary Poyner) 20230412.535 <137 (Tsuneo Horie) 20230412.7899 156:C (Masayuki Moriyama)

1 0

[vsnet-alert 27624] ZTF23aaefkam recent data
by Taichi Kato 12 Apr '23

12 Apr '23

ZTF23aaefkam recent data YYYYMMDD(UT) mag observer 20230327.6121 15.198o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.6153 15.183o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.6209 15.193o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.6388 15.225o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.5905 17.127o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.5959 17.383o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.5996 17.170o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230412.8409 <159C (Masayuki Moriyama)

1 0

[vsnet-alert 27623] ASASSN-23cn recent data
by Taichi Kato 12 Apr '23

12 Apr '23

ASASSN-23cn recent data YYYYMMDD(UT) mag observer 20230410.7881 15.730o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.7910 16.038o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.7982 15.839o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.8097 15.868o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230412.0238 15.935c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230412.0271 16.060c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230412.0325 15.976c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230412.0430 16.069c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230412.4798 15.96C (Masayuki Moriyama)

1 0

[vsnet-alert 27622] BT CrB likely superoutburst
by Taichi Kato 12 Apr '23

12 Apr '23

BT CrB likely superoutburst UGSU+E YYYYMMDD(UT) mag observer 20230329.3247 19.011zg (ZTF Alert DC mag (Masci+ 2019)) 20230408.3995 17.269zg (ZTF Alert DC mag (Masci+ 2019)) 20230408.4348 17.351zr (ZTF Alert DC mag (Masci+ 2019)) 20230410.3453 17.103zg (ZTF Alert DC mag (Masci+ 2019)) 20230410.4020 17.183zr (ZTF Alert DC mag (Masci+ 2019)) 20230410.4025 17.143zr (ZTF Alert DC mag (Masci+ 2019))

1 0

[vsnet-alert 27621] ASASSN-19ph likely superoutburst
by Taichi Kato 12 Apr '23

12 Apr '23

ASASSN-19ph likely superoutburst Type from ATLAS data. Supercycle about 140 d. YYYYMMDD(UT) mag observer 20230408.4651 16.996zr (ZTF Alert DC mag (Masci+ 2019)) 20230408.4923 17.135zg (ZTF Alert DC mag (Masci+ 2019)) 20230410.4333 16.418zr (ZTF Alert DC mag (Masci+ 2019))

1 0

[vsnet-alert 27620] ASASSN-19pd outburst
by Taichi Kato 12 Apr '23

12 Apr '23

ASASSN-19pd outburst Possible superoutburst. YYYYMMDD(UT) mag observer 20230329.4544 17.011zr (ZTF Alert DC mag (Masci+ 2019)) 20230329.4553 16.993zr (ZTF Alert DC mag (Masci+ 2019)) 20230401.803 <171C (Mitsutaka Hiraga) 20230408.4440 17.240zr (ZTF Alert DC mag (Masci+ 2019)) 20230408.4445 17.245zr (ZTF Alert DC mag (Masci+ 2019)) 20230408.4890 17.174zg (ZTF Alert DC mag (Masci+ 2019)) 20230408.4894 17.218zg (ZTF Alert DC mag (Masci+ 2019)) 20230410.4243 17.267zr (ZTF Alert DC mag (Masci+ 2019)) 20230410.4319 17.297zr (ZTF Alert DC mag (Masci+ 2019)) 20230410.4763 17.237zg (ZTF Alert DC mag (Masci+ 2019)) 20230410.4911 17.212zg (ZTF Alert DC mag (Masci+ 2019))

1 0

[vsnet-alert 27619] ASASSN-VJ065749.18+213318.6 brightening in standstill
by Taichi Kato 12 Apr '23

12 Apr '23

ASASSN-VJ065749.18+213318.6 brightening in standstill YYYYMMDD(UT) mag observer 20230306.1141 16.066o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.1259 16.232o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.1318 16.269o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.1350 16.115o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.2927 16.292o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.2954 16.252o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.3010 16.296o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230306.3114 16.182o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230308.8034 16.314o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230308.8065 16.147o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230308.8246 16.265o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230308.8300 16.164o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0784 16.028o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0812 16.073o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0862 16.072o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.0971 16.103o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230310.2573 16.120zg (ZTF Alert DC mag (Masci+ 2019)) 20230311.3038 15.965o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.3066 16.019o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.3127 16.023o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230311.3227 15.957o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.7977 16.048c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8013 15.990c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8077 16.165c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8178 16.118c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.8270 16.160c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0255 16.319o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0407 16.246o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0439 16.354o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.0493 16.395o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.1932 15.540zg (ZTF Alert DC mag (Masci+ 2019)) 20230314.6422 172:C (Masayuki Moriyama) 20230315.3023 16.569o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.3055 16.557o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.3119 16.515o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230315.3229 16.553o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.0258 15.732o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.0290 15.790o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.0418 15.755o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.0507 15.853o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.3082 15.925o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.3114 15.910o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.3168 15.912o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.3274 15.912o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230319.5669 160C (Masayuki Moriyama) 20230320.7959 16.274c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.7977 15.883c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.7991 15.895c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.8009 16.005c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.8045 15.983c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.8096 15.903c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.8191 15.985c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.0458 16.142o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.0484 16.130o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.0537 16.151o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230322.0637 16.066o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.0307 16.192o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.0349 16.216o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.0409 16.143o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.0538 16.191o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2585 16.202o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2617 16.223o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2669 16.177o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2798 16.186o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.5920 162C (Masayuki Moriyama) 20230327.2416 15.969o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2449 16.058o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2505 16.115o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2638 16.077o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2820 16.166o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2858 16.204o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.2938 16.239o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230331.3046 16.277o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.2927 16.365o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230401.3044 16.301o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230403.5543 158C (Masayuki Moriyama) 20230404.0036 16.028o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.0173 15.924o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.0206 15.669o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.0261 15.857o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.0378 15.904o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.9865 16.152o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.9961 16.117o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230404.9998 16.085o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.0238 16.036o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.2903 15.819o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230405.3023 16.006o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.2386 15.926o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.2423 15.982o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.2477 15.983o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230407.2596 16.018o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230408.0247 16.064o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230408.0279 16.106o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230408.0338 15.950o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230408.0533 16.044o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230408.5762 159C (Masayuki Moriyama) 20230409.2626 16.038o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230409.2658 16.107o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230409.2712 16.105o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230409.5772 159C (Masayuki Moriyama) 20230410.0318 16.012o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.0374 16.102o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.0443 16.101o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.0485 16.007o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.5427 160C (Masayuki Moriyama) 20230411.2785 15.903c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230411.2878 15.822c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230411.2987 15.906c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

1 0

[vsnet-alert 27618] BH Lyn getting very faint
by Taichi Kato 12 Apr '23

12 Apr '23

BH Lyn getting very faint YYYYMMDD(UT) mag observer 20230107.3225 16.367zr (ZTF Alert DC mag (Masci+ 2019)) 20230107.4738 17.205zg (ZTF Alert DC mag (Masci+ 2019)) 20230115.4270 17.160o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230115.4288 17.152o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230115.4324 17.061o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230115.4563 17.811o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230119.4835 17.417o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230119.4871 17.481o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230119.4930 17.680o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230119.5085 17.659o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230123.4634 16.953o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230123.4666 16.701o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230123.5182 17.475o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230123.5237 17.446o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230125.2797 17.226zg (ZTF Alert DC mag (Masci+ 2019)) 20230125.3205 16.810zr (ZTF Alert DC mag (Masci+ 2019)) 20230127.2998 17.323zr (ZTF Alert DC mag (Masci+ 2019)) 20230202.4453 16.765zg (ZTF Alert DC mag (Masci+ 2019)) 20230205.2606 17.453zg (ZTF Alert DC mag (Masci+ 2019)) 20230205.3478 17.042zr (ZTF Alert DC mag (Masci+ 2019)) 20230208.1138 17.064zg (ZTF Alert DC mag (Masci+ 2019)) 20230208.1748 16.854zr (ZTF Alert DC mag (Masci+ 2019)) 20230210.2270 16.770zr (ZTF Alert DC mag (Masci+ 2019)) 20230210.2642 17.239zg (ZTF Alert DC mag (Masci+ 2019)) 20230211.8002 172:C (Masayuki Moriyama) 20230217.2289 15.517zr (ZTF Alert DC mag (Masci+ 2019)) 20230217.2594 15.634zg (ZTF Alert DC mag (Masci+ 2019)) 20230219.2439 17.181zr (ZTF Alert DC mag (Masci+ 2019)) 20230219.3257 15.824zg (ZTF Alert DC mag (Masci+ 2019)) 20230310.2409 17.282zr (ZTF Alert DC mag (Masci+ 2019)) 20230310.3046 15.330zg (ZTF Alert DC mag (Masci+ 2019)) 20230312.3433 19.238o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.3466 18.942o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.3521 19.070o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230312.3620 18.978o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230314.2011 16.941zg (ZTF Alert DC mag (Masci+ 2019)) 20230316.3833 19.003o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.3864 19.018o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.3935 18.743o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230316.4033 18.910o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230318.1738 17.405zr (ZTF Alert DC mag (Masci+ 2019)) 20230328.3239 19.053o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230329.5961 <169C (Masayuki Moriyama) 20230410.3305 19.228o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.3342 19.087o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.3413 18.945o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230410.3565 18.860o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

1 0

[vsnet-alert 27617] Re: ASASSN-15dq: early superhumps or growing ordinary superhumps?
by Taichi Kato 11 Apr '23

11 Apr '23

Re: ASASSN-15dq: early superhumps or growing ordinary superhumps? According to Itoh-san's observation on Apr. 11, superhumps had grown. The profile was that of growing ordinary superhumps, not early superhumps.

1 0

[vsnet-alert 27616] TCP J17233734+1902555: ordinary superhumps
by Taichi Kato 11 Apr '23

11 Apr '23

TCP J17233734+1902555: ordinary superhumps Most recent data from Josch Hambsch and Itoh-san detected superhumps. The period since Apr. 10 is 0.0560(1) d. This value does not support vsnet-alert 27589. This early claim of possible early superhumps was apparently affected by data with relatively low quality (weather problem etc.). A new analysis using the data up to Apr. 4 yielded a period of 0.05451(5) d (amplitude 0.05 mag), which still needs to be confirmed due to the limited quality of the data.

1 0